Window ventilator



April 29 19% F. NELSON WINDOW VENTILATOH Filed Nov. 4', 1921 Patented 29, 1924.

teaser FRED NELSON, OF MANLIUS, NEW YORK.

WINDOW VENTILATOIR.

Application filed November 4, 1921. Serial No. 512,794.

To all whom it may concern:

Be it known that I, FRED NELSON, of Manlius, inthe county of Onondaga, in the State of New York, have invented new and useful Improvements in Window Ventilators, of which thefollowing, taken in connection with the accompanying drawings, is a full, clear, and exact description@ This invention relates to a window ventilater as a unitary article of manufacture to be removably inserted in the sash guides between the upper sash and top of the window frame or between the lower sash and window-sill. V g

The main object is to provide a ventilator with a swinging hood movable to and from a position across the main ventilating opening and equipped with a ventilating screen and a closure, both hinged to swing one upon the other across the opening in the bottom of the hood to enable the ventilator to be fully opened, screened or entirely closed.

Another object is to provide opposite longitudinal edges of the main ventilating plate with guides for the reception of extensible supports which are movable into and out of engagement with the window guides.

Other objects and uses relating to specific parts of the device will be brought out in the following description.

In the drawings:

Fig. 1 is a perspective view of a window ventilator embodying the various features of my invention in which the hood and screen are-adjusted for ventilating purposes,

while the closure is shown as partially open.

Fig. 2 is a transverse vertical sectional view of the device shown in Fig. 1.

Fig. 3 is an enlarged detail sectional view taken on line 3-3, Fig. 2.

As illustrated, this window ventilator comprises a rectangular ventilating plate 1 preferably of sheet metal of slightly less length than the distance between the upright sides of the window frame in which it is adapted to be placed and of any suit able height, said plate being provided with a rectangular opening 2 and lengthwise guides 3 along its opposite longitudinal edges for the reception of the opposite arms of a pair of U-shaped supporting members '-4, which are slidable or adjustable endwise along said guides to permit the entire device to be readily inserted into and re moved from the sash guides of the window opening in which the ventilator is adapte to be placed. r

The opening 2 is formed centrally in the major portion of the area of the plate 1 a suflicient distance within the marginal edges thereof to form a frame-work extending entirely around the opening. I

The guides -3 are formed by bending the opposite longitudinal edges of the frame of the plate 1 inwardly at the same side and then downwardly and outwardly to form lengthwise grooves in which the opposite arms as 5- of the U-shaped members 4- are slidable, the out-turned edges of the guides forming flanges 6--- at the inner sides of the grooves and of substantially half the width of the guides from front to rear to engage theadjacent edges of the arms of the inner U-shaped members 4 and thereby to assist in holding the arms in parallelism or against inward displacement.

. The portion of the plate 1 forming the upper wall of the opening 2 is defiected outwardly and downwardly a short distance at 7 to form a water board or deflecting, member for deflecting rain and snow away from the opening.

Suitable hinge members 8 are fastened by spot-welding or otherwise to the inner face of the plate 1 just above the opening 2 for receiving and supporting a hood-plate 9 which is hinged along its upperedge at 10- to the members 8 to swing inwardly and outwardly or to and from a vertical position across the opening 2- for effectively closing said opening when adjusted to its extreme inward position, it being understood that the hood-plate is alsorectangular and of sufficient area to substantially cover the opening when closed, the lower edge of said hood-plate being extended to form a flange 1lwhich overlaps the outer face of the lower wall ,of the opening when the hood is in its closed position to additionally deflect rain and snow from said opening.

The ends of the hood-plate 9- are bent inwardly to form triangular end walls 12- which together with the member 9 constitutes a hood, the end walls extending downwardly from the upper edge of the plate a distance substantially equal to the vertical height of the opening -2 so as to swing in saidopening close to the end walls thereof as the hood is swung inwardly and outwardly to and fro'mits closed position.

The inner edges of the end walls 12- of the hood are provided with out-turned flanges -13- fbrmingstops for engaging the inner faces of the end walls of the opening 2- to limit "the outward swinging movement of the hood and thereby to cause the plate 9to assume a downwardly and outwardly inclined position when the hood is opened.

Suitable buttons 14= are pivoted to the plate 1 just below and at (opposite ends of the opening 2 to swinginto and out of engagement with the adjacent flanges ,1'3 of the hood to hold the latter in its extreme open position and also to release the hood to allow 'it to be swung inwardly .to its of the screen 15 is hinged along its cl osed position. 7

The ob'eot of this swinging movement of V the hood is to permit it to be closed flatwise with its plate 9- approximately coincident with the plane of the plate 1- particularly where outside blinds are used, thus permitting the blinds to be closed without displacing the hood from the window or when the blinds are opened, the hood may be extended to its open position for ventilating purposes, it being understood that the lower and inner sides of the hoodare opened to allow the air to pass therethrough when I desired- A rectangular screen l'5 of substantially the same area as the opening in the bottom of the hood is hinged at 16- along its outer longitudinal edge to the inner face of the hood-plate '9 to swing vertically between the end walls -12 in close proximity thereto end to end from ,a position across the inner face of the plate 9 where it may be held by a spring catch or detent 17-, or when released may be rocked inwardly and downwardly across the opening in the bottom of the hood and into engagement with the lower wall of the opening -2-., the inner edg f he s e ing provided with a flange -18 constituting a stop for limitingithe outward swinging movement of the hood by contact of the inner faceof the plat l-- A rectangular plate or closure 19-- of suflicifint area to cover the foiaminous part outer edge at -20 to the inner face of said screen for closing the openings therethrough but may be opened toward the plate -9 and held in its open position by a catch 21 thereby permitting the air to pass through the screen and into the room through the opening 2 when the hood is opened or the screen -15- and closure 19 may be locked in their open positions and the hood rocked to its closed posit-ion, as shown by dotted lines in Fig. 2.

The object of the closure -19- is to close the foraminous part of the screen -15- when the hood is opened as may be necessary during temporary cold spells or excessive wind, but under ordinary conditions may be left opened for ventilating purposes.

In case blinds are used on the outside of the building and it is desired to close the same, the buttons 14 may be turned to release the hood and-to allow the sameto drop by its own weight to its closed position in which position, it may be locked by returning the buttons -14.- to engage in notches 22 in the lower edges of the end walls 12 near the plate '9, it being understood thatthe screen 15 and closure l9 will then have been opened and locked in their open positions by the catches l7 and 21-, respectively.

The opposite arms 5 of the U-shaped members 4 are recessed along their adjacent faces and overlapped one upon the other for relative sliding movement in the grooved flanges 3- so that the combined thicknesses of the adjacent arms from front to rear are substantially equal to the corin the flanges -3- and also of approximately the same thickness as the remaining portions of the arms, which enable the flange members 3 to be formed of the same size throughout their lengths.

What I claim is:

1. In a ventilator having a hood open at the bottom for ventilating purposes, the combination of a screen hinged to the hood to swing to and from a position across said opening, and a closure hinged to the screen to swing to and from a position across the opening therein.

'2. In a ventilator having a frame provided with an opening for ventilating purposes, and a hood hinged to swing in -the opening and open at the bottom for ventilating purposes, the combination of a screen open bottom thereof, a closure plate hinged able end extensions for varying the efiective to the screen to move to and from a posilength thereof. 7 0 tion across the openings therein, means for In witness whereof I have hereunto set holding the hood in its open position, means my hand this 29th day of October, 1921.

' on the hood for holding the screen in its FRED NELSON.

open position, and means for holding the Witnesses: closure plate in its open position, said H. E. CHASE, frame being provided with relatively mov- E. M. FRADENBURGH. 

